/Engine/Source/Developer/TraceServices/Public/TraceServices/Model/Regions.h
Enumerates all regions that overlap a certain time interval. Will enumerate by depth but does not expose lanes.
true if the enumeration finished, false if it was aborted by the callback returning false
bool EnumerateRegions ( double IntervalStart, double IntervalEnd, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< bool(const [FTimeRegion](API\Developer\TraceServices\TraceServices\Model\FTimeRegion) &)> Callback ) const